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// $Id: UMLModelElementNamespaceComboBoxModel.java,v 1.16 2004/09/20 15:28:44 mvw Exp $
// Copyright (c) 1996-2003 The Regents of the University of California. All
// Rights Reserved. Permission to use, copy, modify, and distribute this
// software and its documentation without fee, and without a written
// agreement is hereby granted, provided that the above copyright notice
// and this paragraph appear in all copies. This software program and
// documentation are copyrighted by The Regents of the University of
// California. The software program and documentation are supplied "AS
// IS", without any accompanying services from The Regents. The Regents
// does not warrant that the operation of the program will be
// uninterrupted or error-free. The end-user understands that the program
// was developed for research purposes and is advised not to rely
// exclusively on the program for any reason. IN NO EVENT SHALL THE
// UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
// SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS,
// ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
// THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF
// SUCH DAMAGE. THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY
// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE
// PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF
// CALIFORNIA HAS NO OBLIGATIONS TO PROVIDE MAINTENANCE, SUPPORT,
// UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
package org.argouml.uml.ui.foundation.core;
import org.argouml.model.ModelFacade;
import org.argouml.model.uml.UmlModelEventPump;
import org.argouml.model.uml.foundation.core.CoreHelper;
import org.argouml.uml.ui.UMLComboBoxModel2;
/**
* A model for a namespace combo box,
*
* @since Oct 10, 2002
* @author jaap.branderhorst@xs4all.nl, alexb
*/
public class UMLModelElementNamespaceComboBoxModel extends UMLComboBoxModel2 {
private static UMLModelElementNamespaceComboBoxModel theInstance;
/**
* Constructor for UMLModelElementNamespaceComboBoxModel.
*/
public UMLModelElementNamespaceComboBoxModel() {
super("namespace", false);
UmlModelEventPump.getPump().addClassModelEventListener(this,
(Class) ModelFacade.NAMESPACE, "ownedElement");
}
/**
* @see org.argouml.uml.ui.UMLComboBoxModel2#isValidElement(Object)
*/
protected boolean isValidElement(Object o) {
return org.argouml.model.ModelFacade.isANamespace(o)
&& CoreHelper.getHelper().isValidNamespace(
/*(MModelElement)*/ getTarget(), /*(MNamespace)*/ o);
}
/**
* @see org.argouml.uml.ui.UMLComboBoxModel2#buildModelList()
*/
protected void buildModelList() {
setElements(CoreHelper.getHelper()
.getAllPossibleNamespaces(/*(MModelElement)*/ getTarget()));
}
/**
* @see org.argouml.uml.ui.UMLComboBoxModel2#getSelectedModelElement()
*/
protected Object getSelectedModelElement() {
if (getTarget() != null) {
return ModelFacade.getNamespace(getTarget());
}
return null;
}
}